package com.zzy.util.hashtest;

import java.util.*;

public class HashTest {

    public static void main(String[] args) {
        test();
    }

    public static void test(){
        Map map = new HashMap();
        Map map1 = new Hashtable();
        Map map2 = new WeakHashMap();
        Map map3 = new TreeMap();


    }

    public static void test2(){
        List list = new ArrayList();
        List list1 = new LinkedList();
        List list2 = new Vector();

    }

    public static void test3(){
        Set set = new HashSet();
        Set set1 = new TreeSet();
    }

}
